New endoscope for (laser) endoscopic diverticulotomy.

In the United States, traditional treatment of the hypopharyngeal (Zenker's) diverticulum has been single stage transcutaneous diverticulectomy. Complications following this procedure include mediastinitis, vocal cord paralysis, esophageal stenosis, fistula, and recurrent or persistent diverticulum. Endoscopic diverticulotomy, widely used throughout Europe, is relatively straightforward and efficacious. Transoral management of these diverticulae has allowed symptomatic relief with a low incidence of complications. A new endoscope has been developed to facilitate use of the carbon dioxide laser for endoscopic diverticulotomy. The instrument combines the characteristics of the Dohlman endoscope (bilateral distal slots) with a wider proximal end for microscopic endoscopy, a smoke evacuator channel, a fiberoptic light carrier, and a handle adaptable for suspension microendoscopy.